<extend name="public@base"/>
<block name="seo">
    <title>{$page_i18n.post_title}</title>
    <meta name="keywords" content="{$page_i18n.post_keywords},{$site_info.site_seo_keywords|default=''}"/>
    <meta name="description" content="{$page_i18n.post_excerpt},{$site_info.site_seo_description|default=''}">
</block>